miland-db commented on code in PR #46665:
URL: https://github.com/apache/spark/pull/46665#discussion_r1612427632
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sql/api/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBaseParser.g4:
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@@ -42,6 +42,29 @@ options { tokenVocab = SqlBaseLexer; }
public boolean double_quoted_identifiers = false;
}
+compoundOrSingleStatement
+ : singleStatement
+ | singleCompound
+ ;
+
+singleCompound
+ : compound SEMICOLON* EOF
+ ;
+
+compound
+ : BEGIN compoundBody END
+ ;
+
+// Last semicolon in body is optional.
+compoundBody
Review Comment:
By separating these 2 rules we can reuse `compoundBody` inside `if/else`,
`while` and some other things that we are planning to add when there is no need
to also have `begin/end` block
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